Oil-expressing box



(NoModel.) A vT. P. SULLIVAN 8v E. MGM. HAZARD'.

OIL EXPRESSING BOX. No 320 896. Patented June 23, 1885.

@fm MM. m /Iz wz 47M UNITED STATES EETCEO PATENT THOMAS P. SULLIVAN, OFVEBSTER GROVES, AND EVAN MOM. HAZARD, OF ST. LOUIS, MISSOURI.

SPECIFICATION forming part of Letters Patent No. 320,896, dated June23,1885.

Application filed March 23, 1885. (No model.)

To @ZZ whom it may concern:

Be it known that we, TrroMAs P. SULLI- vAN and Evan MCM. HAZARD,residents, respectively, of Vebster Groves, St. Louis county, Missouri,and the city of St. Louis, Missouri, havejointly made a new and usefulImprovement in Oil-Expressing Boxes for Expressing Oil from Cotton Seedand other Seeds, of which the following is a full, clear, and exactdescription.

The object of the improvement is to provide means for obviating the useof mats in oil-expressing boxes.

It consists, mainly, in the employment at the upper edges of thefollower of a strip so constructed and attached that it shall, as thefollower moves into the box, keep t-he joint between the follower andthe box closed, and thereby prevent the bag which contains the seed frombeing caught and torn between the follower and the box.

The annexed drawings, making part of this specification, exhibit themost approved mode of carrying out the improvement.

Figure 1 is a plan of the box. Fig. 2 is a vertical cross-section on theline 2 2 of Fig. 1, the view showing two boxes as in'use. Fig. 3 is asection on the line33 of Fig. l, and Fig. 4 is an edge elevation of oneof the followerstrips.

The saine letters ofreference denote the same parts.

The boxes A, saving as modied by the improvement, are of the customaryform and used in the customary manner. B represents the strip forclosing the joint between the follower C and the side of the box. Thesestrips are preferably used only at the sides c c of the follower, thestrips in practice not being needed at the ends of the follower.

ln expressing the oil in the present instance the material from whichthe oil is obtained is pnt into a bag composed of a textile fabricsuchas woolen cloth-and run through a former to impart an even thickness tothe package. This package then,and without any outer mat or envelope, isplaced within the box,rest ing upon the follower C of the box beneath.

Now, as a nest of oil-expressing boxes has heretofore been constructedthere is a certain closed as the follower and boxes move laterally uponeach other. To this end the strip B is made laterally adjustable uponthe follower, so that when the follower moves away from the side of thebox the strip shall slip upon the follower and keep its outer edge, b,againstthe side a of the box, and when the followersways in the oppositedirection the strip shall, by reason of the side of the box pressingagainst the edge b, be slipped farther onto the follower, and thus inall positions ofthe follower act as a guard to close the entrance to thejoint. To thus provide for an adj ustableguard and to obtain apracticable means for keeping the strip in position,the followingconstruction is preferably adopted. The strip#say at two points in itslength-is provided with alug, b', which is narrowed at b2. The followeris chambered out in its side to receive the lug,and the y chamber c',opposite the lowerlarger portion of the lug, is extended i nto thefollower to receive aspring, D, whose function is to exert an elasticpressure outwardly against the lug, and thereby cause the strip B toslip whenever the relative posit-ion of the follower and the box shallpermit of it upon the follower, and thereby keep its edge b against theside a, and, on the other hand, to yield when the follower moves in theopposite direction, and allow the strip to be slipped inwardly upon thefollower. At the same time the lug serves to steady the strip in placeupon the follower. The strip is notched along its edge b to provideopenings for the oil, and the side a of the box is for a similar purposemade a separate piece and with channels c behind it. A further importantfeature of the strip is shaping it to form or providing it with the lipb3 at its upper outer edge. This lip serves to round the package at itslower side corner, and to insure any part of the bag from getting intothe joint between the follower and the side of the-..

box. upper corners of the box to round the package amount of playbetween the followers and the at its upper corners.

There may be a corner-strip, E, at the- We clain1- 4. The combination ofthe follower C, cham- 1. An oil-expressing box whose follower is beredat c', with the strip B, having the lug b', provided with a strip toclose the joint beand the spring D, substantially as described. 15

tween the follower and the sides of the box. Witness our hands. 3 2. A11oil-expressing box whose follower is provided with a strip to close thejoint be- THOS. P. SULLIVAN. tween the follower and the side of the box,EVAN MOM. HAZARD. said strip being laterally adjustable upon the ffollower, for the purpose described. Witnesses: 3. In combination withthe box A and the C. D. MOODY,

follower C, the strip B, having the lip b2, sub- R. S. CATHCART.

stantially as described.

